Fire-box-door closer.



R. A. PHILBRIOK. FIRE BOX DOOF CLOSER. APELIOATIOH' FILED 31H. 0, 1909.

Patented Ju 1y19,1910.

9 1 i J \l 7 fl w /,V wry 7 m o H Winn/ace: I

gomery and State of Kansas, have invz .polnted. out in the claim and shown arms at theii free ends carry inwar Application filed iiennary' 8,

To all whom it may cease-m:

Be it known that l, ltmnnno A BRICK, a citizen of the United ingat Cofieyville, in. the county 01 a new and useful Improvement in l? i Door Closers, of which. the followin specification.

This inventionrelates to mechanic. ated by compressed air for closing an ing furnace doors and 8SpCl llly a A I. for use in connection with the doors of locomotive furnaces,- where the compressed air necessary to operate the device can be readily obtained by tapping the train pi The invention consists oil the It tul es of construction hereinafter tortln in the accompanying drawings, in which,

Figure 1 a detail sectional View showing the invention applied to a furnace door the door and an end of the furnace being shown in outline, and the floor of an engine l being shown partly in section. Fig. 2 section on the line 2-2 of Fig. I, lool downwardly.

In these drawings,

i represents the in mace and 2 the door and the door ptovided with hinge leave 3 which are lixwl' to a rotatable pintle 4; joui'nnled in. able bearings which lileai'ings may C0] of the StfltlODtUly sleeves which now to a part of the usual hinge. The device can therefore be applied to doors already in. use by simply substituting the pintle l for the present pintle, and this pintle eritcn s downwardly and at its lower end carries a drum 6 provided with intersecting; inn grooves 7 which extend spirally about the, drum. Upon either side of the drum are placed guides 8. Below the cob floor is :11- ranged vertically an air cylinder 9 provided with a piston 10 having a piston rod ll. -tt its upper end'the piston rod forked pm 5 viding two upwardly extending parallel arms 12 which. slide upon the guides E5 and between. said guides and the drum These tending c I .l which only lJL n the 01 )1 of pins or roll e! e, and. will.

6 the cam grooves Y of the drain. beneath the cab floor a valve ch en- 1 also casino tossed air pipe iii leads to will the eaid casing an air he nopei' end of the cylinds to the lower end an exhaust pipe 18 pipe l.

, tier 9 and. a i

cyl.

c, I Hi8 item the Va 'e casing 13, and coin-- casing at a point niid l6 and ii. The valve let is int length to bridge two of the 4 and when in one position con- )1 it? and. 18, as siown in the s, and when, moved into the other position tmnnecte pipes 16 and l8 so that one of t e air ei'pes loading to the cylinder f al connnnnication with the eni'iuet pipe i o While'the other pipeis in coin- -lllniUi-ltiml Witn the air pipeltt Any sliding the valve 1%, and. l have shown a eiinple CUJlSlTILlCliiOIl consisting of a foot operated 1"0(l l9 normally held in elevated posi fling 2C), and which when dca bell etanlc 2i, pivotally coned to a valve stem J ting normallv holds the Valve 1 position that the air pipe 16 is in conmnniication with the train the air pn'essni'e holds the ill at the lo W431 end of the cylinder 3*,

l J. L

3' the rod ill the valve 14: is shii'ted npe it is brought into connnnnicw lion with. the exhaust pipe 18 and all? is one haunted from the cylinder through the pipe 16 and admitted to the cylinder at the lower end through the pipe 17. This forces the piston to the upper end of the cylinder and the upwoi'tl movement of the piston rod 11 and min a 12 causes the cam arms 1.2 to travel along; the cam gi'ooveg 7, thus rotating the drum 6 and pintle et and swinging the ili'ni-nace doorlnto open position. Upon 1116- lease Oil the pressure upon the pin 19 a reversal of the above operation Will take place and the door will be automatically closed.

at l claim i&'t

of the kind described consisting ,itlcally attain con'lptessed air cyleiston. the? n, a olsgon Z'Otl extend 1d of the piston npW-ardly cit desired means may be provided for lip on tending parallel arms,

. said arms slide, i

arms carried by the free ends of the first mentioned arms, a rota 5 drum arranged between the arms first mentioned and engaged-by a pintle carried by the door,

table spirally grooved the earn mine, a door,

ing upon the axi nected thereto,

uides upon which 1yextending com Witnesses said pintle be compressed air to RICHARD A. PHILBRIOK.

a1 line of the drum and conand means for admitting the ends of said cylinder. 10

H. G. MEGINN, A. G. HUGHES. 

